US20050022318A1 - Drum washing machine and method of controlling the same - Google Patents

Drum washing machine and method of controlling the same Download PDF

Info

Publication number
US20050022318A1
US20050022318A1 US10/811,853 US81185304A US2005022318A1 US 20050022318 A1 US20050022318 A1 US 20050022318A1 US 81185304 A US81185304 A US 81185304A US 2005022318 A1 US2005022318 A1 US 2005022318A1
Authority
US
United States
Prior art keywords
rotary tub
water
washing machine
drum washing
spin
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Abandoned
Application number
US10/811,853
Other languages
English (en)
Inventor
Hyun Kim
Ki Joo
Jung Jung
Ki Lee
Hyun Lee
Uk Jang
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Assigned to SAMSUNG ELECTRONICS CO., LTD. reassignment SAMSUNG ELECTRONICS CO., LTD. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: JANG, UK JIN, JOO, KI HUN, JUNG, JUNG RAN, KIM, HYUN SOOK, LEE, HYUN MU, LEE, KI SU
Publication of US20050022318A1 publication Critical patent/US20050022318A1/en
Abandoned legal-status Critical Current

Links

Images

Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F35/00—Washing machines, apparatus, or methods not otherwise provided for
    • D06F35/005—Methods for washing, rinsing or spin-drying
    • D06F35/006—Methods for washing, rinsing or spin-drying for washing or rinsing only

Definitions

  • a drum washing machine is a device that washes laundry using drops of water generated by a rotation of a rotary tub having a drum shape.
  • a set amount of water is fed into a water tub, which is a fixed tub, to rinse laundry.
  • the water fed into the water tub gradually fills the water tub, and then flows into a rotary tub.
  • Laundry contained in the rotary tub is soaked with the water. If a level of the water rises to a certain level or more, a rinsing process is executed while the rotary tub is rotated in opposite directions. Therefore, some of the laundry coming into contact with an inner wall of the rotary tub is soaked with the water contained in the rotary tub in advance, and then remaining laundry is soaked with the water as the water gradually disperses.
  • the part of the laundry coming into contact with the inner wall of the rotary tub is sufficiently soaked with water.
  • a center part of the laundry is relatively insufficiently soaked with the water, so that the laundry is not uniformly soaked with water. Consequently, there is a problem in that, if rinsing is performed in this state, the rinsing performance is deteriorated.
  • a method of controlling a drum washing machine including spin-drying laundry by rotating a rotary tub after a washing and/or rinsing operation, wherein the spin-drying of the laundry includes spraying and feeding water into the rotary tub during a time period wherein the rotary tub is inertially rotated.
  • the time period of the spraying and feeding of the water may be shorter than a time required for termination of the inertial rotation of the rotary tub.
  • the drum washing machine control method may further include pumping water in the rotary tub to outside of the rotary tub until the inertial rotation of the rotary tub terminates.
  • the spin-drying of the laundry may be an intermittent spin-drying operation in which the laundry is intermittently spin-dried after the washing and/or rinsing operation.
  • the spraying and feeding of the water may also be executed during a time period wherein a rotation speed of the rotary tub rises.
  • a drum washing machine including a rotary tub, a spray feed unit to spray and feed water into the rotary tub, and a control unit to control the spray feed unit, wherein the control unit controls the spray feed unit to spray and feed water into the rotary tub during a time period wherein the rotary tub is inertially rotated at a time of spin-drying.
  • the control unit may control the spray feed unit at a time of intermittent spin-drying in which laundry is intermittently spin-dried after a washing and/or a rinsing operation.
  • the control unit may also control the spray feed unit to spray and feed the water during a time period wherein a rotation speed of the rotary tub rises.
  • the control unit may control the spray feed unit so that a time required for the spraying and feeding of the water is shorter than a time required for termination of the inertial rotation of the rotary tub.
  • the drum washing machine may further include a pump to drain water in the rotary tub to outside of the rotary tub.
  • FIG. 1 is a perspective view showing an internal structure of a drum washing machine, according to an embodiment of the present invention
  • FIG. 5 is a control flowchart showing an intermittent spin-drying operation performed after a rinsing operation in the method of FIG. 2 ;
  • FIG. 6 is a graph showing a start and a termination of a spray rinsing operation of FIG. 5 .
  • FIG. 1 is a perspective view showing an internal structure of a drum washing machine, according to an embodiment of the present invention. As shown in FIG. 1 , main and auxiliary water feed pipes 12 and 13 are mounted to allow water flowing from an external water supply pipe to selectively flow into a water tub 10 or a rotary tub 11 .
  • a detergent container 16 is disposed at a portion of the main water feed pipe 12 , between the main water feed valve 14 and the water tub 10 , to feed water and detergent together into the water tub 10 .
  • a spray nozzle 13 a is mounted at an end of the auxiliary water feed pipe 13 to spray water into the rotary tub 11 . Therefore, the drum washing machine is constructed so that water and detergent are fed together into the water tub 10 through the main water feed pipe 12 , and only water is sprayed and fed into the rotary tub 11 through the auxiliary water feed pipe 13 .
  • a reversible motor 20 is coupled to the rotary tub 11 , which is rotated in forward and reverse directions by an operation of the motor 20 .
  • the main water feed valve 14 , the auxiliary water feed valve 15 , the drain pump 18 , the drain valve 19 , and the motor 20 are electrically connected to a control unit that performs an entire control operation of the drum washing machine.
  • FIG. 2 is a control flowchart of a method of controlling the drum washing machine, according to the embodiment of the present invention shown in FIG. 1 .
  • a detergent is fed into the water tub 10 and then a set amount of water is fed into the water tub 10 in operation 100 .
  • the motor 20 is rotated in forward and reverse directions to rotate the rotary tub 11 in opposite directions, thus washing laundry in operation 101 .
  • the motor 20 rotates the rotary tub 11 at a high rotation speed to remove waste water from the laundry.
  • the rotation speed of the motor 20 is lower than a speed at the time of a final spin-drying for a certain period, thus performing an intermittent spin-drying operation in operation 103 .
  • the auxiliary water feed valve 15 is opened to directly spray and feed clean water into the rotary tub 11 while the rotary tub 11 is rotated by rotational inertia just before the intermittent spin-drying operation terminates. Therefore, while the sprayed clean water passes through an outer part of the laundry from a center part of the laundry, waste remaining on the laundry is removed from the laundry. Consequently, the entire laundry is rinsed clean while being uniformly soaked with the clean water within a short time.
  • clean water is fed again into the water tub 10 through the main water feed pipe 12 in operation 104 . Further, the motor 20 is rotated in forward and reverse directions at a preset rotation speed to rotate the rotary tub 11 in opposite directions, thus performing a rinsing operation in operation 105 .
  • waste water contained in the rotary tub 11 is drained in operation 106 .
  • the motor 20 is rotated at a high speed to rotate the rotary tub 11 , thus performing an intermittent spin-drying operation in operation 107 .
  • water is sprayed and fed into the rotary tub 11 in a similar manner to the intermittent spin-drying operation performed after the washing operation.
  • the water spraying and feeding operation is only performed once while the rotary tub 11 is rotated by rotational inertia, just before the intermittent spin-drying operation terminates.
  • the water spraying and feeding operation is additionally performed during an interval when the rotation speed of the rotary tub 11 rises, along with the water spraying and feeding operation being performed during the interval when the rotary tub 11 is rotated by rotational inertia.
  • a final spin-drying operation may be immediately performed.
  • the final spin-drying operation may be performed after the water feeding operation 104 , the rinsing operation 105 , the draining operation 106 , and the intermittent spin-drying operation 107 are further performed a predetermined number of times. After the final spin-drying operation has been completed, the above control method terminates.
  • FIG. 3 is a control flowchart showing the intermittent spin-drying operation performed after the washing operation in the method of FIG. 2 .
  • the motor 20 and the drain pump 18 are turned on in operation 110 .
  • the rotation speed of the rotary tub 11 gradually rises, so that the rotary tub 11 is rotated at a high speed, and waste water is forced out of the laundry.
  • the waste water forced out of the laundry is compulsorily pumped to a drain-outlet by the drain pump 18 and then drained.
  • control unit determines whether a preset intermittent spin-drying time has elapsed in operation 111 . If the preset intermittent spin-drying time has not elapsed, the control unit continues to perform operation 110 .
  • the control unit turns off the motor 20 to stop the rotary tub 11 , in response to an intermittent spin-drying termination signal indicating that the intermittent spin-drying time has elapsed, in operation 112 .
  • the rotary tub 11 continues to rotate by rotational inertia. As time passes, the rotary tub 11 is stopped by a friction.
  • the auxiliary water feed valve 15 While the rotary tub 11 is rotated by rotational inertia, the auxiliary water feed valve 15 is turned on in operation 113 . Accordingly, water flowing from the water supply pipe passes through the auxiliary water feed pipe 13 and is directly sprayed on the laundry contained in the rotary tub 11 from the spray nozzle 13 a. Therefore, as described above, the water removes the waste water from the laundry by rinsing the laundry while passing through the laundry, and is then drained. Thereafter, it is determined whether the auxiliary water feed valve 15 is turned on for a predetermined period in operation 114 . For example, a period for which the auxiliary water feed valve 15 is turned on to spray and feed water may be approximately 20 seconds.
  • the auxiliary water feed valve 15 is turned off in operation 115 to stop the above spray rinsing operation.
  • FIG. 4 is a graph showing a start and a termination of the spray rinsing operation of FIG. 3 .
  • the rotary tub 11 is rotated at a high speed. Further, the water spraying and feeding operation is performed for a certain period just before the intermittent spin-drying operation terminates after the motor 20 is turned off. For reference, during an interval when the rotation speed of the rotary tub 11 gradually rises, the water spraying and feeding operation is not performed. This is due to the fact that, if cool water is sprayed and fed on the laundry while the laundry contains hot water therein due to heating type washing, soil in the laundry is not sufficiently removed.
  • FIG. 5 is a control flowchart showing the intermittent spin-drying operation performed after the rinsing operation in the method of FIG. 2 .
  • FIG. 6 is a graph showing a start and a termination of a spray rinsing operation of FIG. 5 .
  • a second control operation of spraying and feeding water while the rotary tub 11 is inertially rotated just before the intermittent spin-drying operation terminates is the same as that of FIG. 3 .
  • the water spraying and feeding operation is also performed during an interval when the rotation speed of the rotary tub 11 gradually rises (100 to 400 rpm). That is, when the rotation speed of the motor 20 reaches a preset speed, the auxiliary water feed valve 15 is opened to spray and feed water, thus improving the rinsing performance.
  • the present invention provides a drum washing machine, and a method of controlling the drum washing machine, which directly sprays and feeds water into a rotary tub just before termination of an intermittent spin-drying operation which is performed after a washing or rinsing operation, thus enabling laundry to be uniformly soaked with the water within a short time and improving rinsing performance.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Control Of Washing Machine And Dryer (AREA)
US10/811,853 2003-07-31 2004-03-30 Drum washing machine and method of controlling the same Abandoned US20050022318A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
KR1020030053156A KR20050014503A (ko) 2003-07-31 2003-07-31 드럼 세탁기 및 그 제어방법
KR2003-53156 2003-07-31

Publications (1)

Publication Number Publication Date
US20050022318A1 true US20050022318A1 (en) 2005-02-03

Family

ID=33536467

Family Applications (1)

Application Number Title Priority Date Filing Date
US10/811,853 Abandoned US20050022318A1 (en) 2003-07-31 2004-03-30 Drum washing machine and method of controlling the same

Country Status (4)

Country Link
US (1) US20050022318A1 (de)
EP (1) EP1502981A3 (de)
KR (1) KR20050014503A (de)
CN (1) CN100343438C (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100154132A1 (en) * 2008-12-19 2010-06-24 Samsung Electronics Co., Ltd. Washing machine performing shower rinsing and method of controlling the same
CN111297301A (zh) * 2019-12-19 2020-06-19 海信（山东）冰箱有限公司 洗鞋机及其控制方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101888954B1 (ko) * 2011-08-02 2018-08-16 엘지전자 주식회사 세탁기의 탈수제어방법
CN107780125B (zh) * 2016-08-26 2020-11-03 青岛海尔洗衣机有限公司 一种洗衣机控制方法及洗衣机
CN107794703B (zh) * 2016-08-31 2021-09-07 青岛胶南海尔洗衣机有限公司 一种采用波轮洗衣机洗涤冲锋衣的方法及波轮洗衣机
CN107190464B (zh) * 2017-05-27 2021-09-17 青岛海尔洗衣机有限公司 一种洗衣机的控制方法及洗衣机

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6116061A (en) * 1996-12-18 2000-09-12 Lg Electronics Inc. Filtering type washing machine
US20030056300A1 (en) * 2001-09-21 2003-03-27 Maytag Corporation Pump cycling control system for a washing machine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH03139396A (ja) * 1989-10-25 1991-06-13 Matsushita Electric Ind Co Ltd 全自動洗濯機の運転方法
DE4009046C2 (de) * 1990-03-21 1996-08-01 Aeg Hausgeraete Gmbh Verfahren zum Benetzen von Waschgut in einer programmgesteuerten Trommelwaschmaschine
DE4210577C2 (de) * 1992-03-31 1996-10-24 Aeg Hausgeraete Gmbh Verfahren zum Spülschleudern von Wäsche in einer programmgesteuerten Waschmaschine
DE4331632C2 (de) * 1993-09-17 2003-06-26 Aeg Hausgeraete Gmbh Verfahren zum Spülen und Schleudern von Wäsche in einer programmgesteuerten Waschmaschine
GB0003008D0 (en) * 2000-02-11 2000-03-29 Notetry Ltd A method of operating a domestic appliance

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6116061A (en) * 1996-12-18 2000-09-12 Lg Electronics Inc. Filtering type washing machine
US20030056300A1 (en) * 2001-09-21 2003-03-27 Maytag Corporation Pump cycling control system for a washing machine

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20100154132A1 (en) * 2008-12-19 2010-06-24 Samsung Electronics Co., Ltd. Washing machine performing shower rinsing and method of controlling the same
US8875333B2 (en) * 2008-12-19 2014-11-04 Samsung Electronics Co., Ltd. Washing machine performing shower rinsing and method of controlling the same
CN111297301A (zh) * 2019-12-19 2020-06-19 海信（山东）冰箱有限公司 洗鞋机及其控制方法

Also Published As

Publication number Publication date
EP1502981A3 (de) 2006-10-04
KR20050014503A (ko) 2005-02-07
CN1580356A (zh) 2005-02-16
EP1502981A2 (de) 2005-02-02
CN100343438C (zh) 2007-10-17

Similar Documents

Publication Publication Date Title
US7444842B2 (en) Drum washing machine and method of controlling the same
US20050028298A1 (en) Drum washing machine and method of controlling the same
EP1380682B1 (de) Waschmaschine
KR20050072294A (ko) 세탁기 및 그 제어방법
EP1851374A1 (de) Verfahren zum waschen eines bottichs oder einer trommel in einer waschmaschine
US20050022319A1 (en) Drum washing machine and method of controlling the same
WO2006101363A1 (en) Method for controlling of washer
KR101328918B1 (ko) 세탁장치 및 그 운전방법
JP2011041741A (ja) ドラム式洗濯機
US7962985B2 (en) Washing machine and method for controlling the same
US8108959B2 (en) Washing a tub or a drum in a washing machine
JPH08299669A (ja) 洗濯機の濯ぎ方法
US8245343B2 (en) Method for controlling a washing machine
US20050022318A1 (en) Drum washing machine and method of controlling the same
JP2001511055A (ja) スピンバスケット内に洗濯水を噴射する装置を備えた洗濯機
KR0171163B1 (ko) 충분한 헹굼 탈수가 가능한 전자동 세탁기
KR100701937B1 (ko) 세탁기의 배수방법
JP2010046349A (ja) 洗濯乾燥機
KR100399324B1 (ko) 절수형 세탁기
CN118147859B (zh) 洗衣机的控制方法及洗衣机
KR19980078503A (ko) 세탁기의 세탁방법
CN118147863B (zh) 洗衣机及控制方法
KR100743763B1 (ko) 교반식 세탁기를 이용한 세탁방법
CN118147865B (zh) 洗衣机及筒清洁方法
JP7164107B2 (ja) 縦型洗濯機

Legal Events

Date Code Title Description
AS Assignment

Owner name: SAMSUNG ELECTRONICS CO., LTD., KOREA, REPUBLIC OF

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KIM, HYUN SOOK;JOO, KI HUN;JUNG, JUNG RAN;AND OTHERS;REEL/FRAME:015161/0442

Effective date: 20040303

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION